Call: 01392 678082

Established 2004

Ruddlesden geotechnical

Ruddlesden geotechnical provides ground investigation, geotechnical consultancy and contamination assessment services.

Based in Exeter, but covering the whole of the UK, albeit primarily concentrated in the South West, Ruddlesden geotechnical was formed in 2004.

Ruddlesden geotechnical works on behalf of a wide client base, including local, regional and national housing developers, housing associations, commercial developers, building contractors, structural and civil engineers, architects, building consultants, quantity surveyors, local authorities and private individuals.

Development projects range from single dwellings and extensions to large housing estates, multi-storey flats, offices, industrial units, roads, slopes, schools, hospitals and basements.

The services and projects listed on this web-site provide an indication of those undertaken by Ruddlesden geotechnical, but others are carried out. If your requirement is not readily identifiable on this web-site, please contact us as we may still be able to help you.

  • AGS
  • Constructionline
  • CSCS
  • SMAS
  • ECFC trust

Latest news

Recent projects

  • Latest news

    20 Oct 2026

    Creative geotechnical photography

    Inspired by her surroundings at RHS Rosemoor, where she was carrying out the ground investigation for a new educational facility, and with one eye on the Ruddlesden geotechnical site photograph of the year competition, Catherine Greed got creative with her site photography recently, framing the dynamic sampling rig within the last of the summer flowers.

    Creative geotechnical photography

  • Recent projects

    Combined Geotechnical Consultancy Services Provided for Residential Development, Devon

    Ruddlesden geotechnical has provided a combination of several geotechnical consultancy services for a large and on-going residential development site in Torbay. The geology of clay underlain limestone has resulted in a number of geotechnical hazards, primarily associated with solution features in the limestone, which have had implications on foundations, drainage and excavations. Using information obtained from a combination of geophysics, trial pits, dynamic sampling/ windowless sample boreholes and rotary boreholes, foundation recommendations have locally included reinforcement and widening to reduce ground bearing pressures. Deep bore soakaways have been recommended to avoid the potential wash-out of near surface soils, which might be caused by conventional soakaways in these ground conditions. In addition, terracing of a slope in part of the site generated significant quantities of soil. Rather than disposing of this at landfill, a material re-use suitability assessment was undertaken, which allowed an earthworks specification to be produced, which itself enabled ground levels to be raised on another area of the site, reducing the need to mechanically break-out near-surface bedrock for excavations.

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  • Recent projects

    Pile Mat Design, Plymouth

    Geogrids were used as part of a pile mat design for a site in Plymouth. Calculations, which were undertaken in accordance with BRE 470: working Platforms for Tracked Plant, showed that a significant reduction in the platform thickness could be achieved if geogrid was incorporated into the platform construction, reducing the temporary works costs. Calculations were carried out for geogrids of varying tensile strength so that cost-benefit analyses could be carried out.